PICK OF THE DAY

SUPERMARKET SECRETS, 8PM, BBC1

THE weekly food shop is big business and, in the first of a new, three-part series, Gregg Wallace and Watchdog’s Nikki Fox reveal some of the latest innovations that are powering the ways we fill our trolleys, with the internet fundamentally changing the way we shop and eat. Anyone glancing along the aisles this year will have noticed a surge in plantbased food, and Gregg (pictured) finds out how Tesco brought its new vegan range to market. He also hears how Asda is making tomatoes as sweet as strawberries. Nikki, meanwhile, discovers that nothing is off limits when it comes to selling you stuff — including your sense of smell.